Rotary engine.



No. 822,347. PATENTED JUNE 5, 1906. G. P. CLARK.

ROTARY ENGINE.

APPLICATION FILED MAY 13,1904. RENEWED NOV. 6,1905.

' s SHEETS-SHEET 1.

PATENTED JUNE 5, 1906.

v G. P. CLARK.

ROTARY ENGINE.

APPLICATION FILED MAY13,1904. RENEWED NOV. 6, 1905.

3 SHEETSSHEET 2.

No. 822,347. I PATENTED JUNE 5, 1906.

G P. GLARK.

ROTARY ENGINE.

APPLICATION FI ED'MAY 1a, 1904. RENEWED NOV. 6, 1905.

3.SHEETSSHEET 3.

ANDREWY a (mum cu. rnorulmnamwuzns. wlswimmn. 0v 0,

UNITED STATES PATENT OFFICE.

GEORGE PERRY CLARK, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO EMMAMANN VYNNE, OF NEW YORK, N. Y.

ROTARY ENGINE.-

Specification of Letters Patent.

Patented June 5, 1906.

Application filed Mayl3,l904. Renewed November 6, 1905. Serial No.286,131.

To a, whont it may concern:

Be it known that I, GEORGE PERRY CLARK, a citizen of the United States,and a resident of New York, in the county and State of New York, haveinvented certain new and useful Improvements in Rotary Engines, of whichthe following is a specification.

My invention relates to rotary engines.

It has for its object to provide a rotary engine designed to have theminimum amount of friction between its parts, to form steamtight jointsbetween said parts, and to furnish the maximum amount of power for theamount of steam employed.

It has for a further object to provide an engine of the characterdescribed possessing advantages in point of simplicity, strength,inexpensiveness, and general utility.

In the drawings, Figure 1 is a transverse vertical sectional view of myengine; Fig. 2, a longitudinal vertical sectional view taken on the line:0, Fig. 1, and looking in the direction of the arrow as; Fig. 3, alongitudinal vertical sectional view taken on the line y y, Fig. 1, andlooking in the direction of the arrow y; Fig. 4, a segmentary sectionalview of the two-flanged section of the piston, showing the inlet-passagetherein; Fig. 5, a segmentary sectional view of the two-flanged sectionof the piston, showing the outlet-passage therein; Fig. 6, a side view,partly in section, of the bearing for the two-flanged section of thepiston; Fig. 7, a sectional segmentary view of the bearing for thetwo-flanged section of the iston; Fig. 8, an inside face view of one ofthe plates of the movable abutment Fig. 9, an inside face view of one ofthe plates of the movable abutment, showing the spring therein; Fig. 10,a sectional view of the movable abutment.

Corresponding parts in all the figures are denoted by the same referencecharacters.

Referring to the drawings, 1 designates the steam chest or casing, whichis fixed in any suitable wayfor instance, to the body of an automobileor to a base-and comprises a cylindrical part 2, permanently closed onone side by an integral wall 3, provided with a central boss 4, having abore 5 extending into the interior of the casing and closed on the otherside by a removable cheek-plate 6, provided with a boss 7 on itsoutside, having a bore 8 extending therethrough and through a journal 9on the inside of the plate 6, the circumference of the bore in the boss7 being somewhat larger than that in the journal 9 and being threaded soas to receive the threaded end of a pipe 10, having a bore 11corresponding to the bore in the journal 9, this bore and the bore 8forming the exhaust assage from the steam.

Within the casing is mounted the rotatable piston comprising twosections 13 and 14.

The section 13 comprises a plate 15, having concentriclaterally-projecting circular flanges 16 and 17, and said section isrotatably mounted on a ring 18 adjustably secured to the plate 6 byscrews 19, passing through slots 20 therein and engaging holes 21 insaid ring, so that it can be adjusted to raise or lower the section 13into contact with the section 14 to take up any wear between said arts,and antifriction-rolls 22 are mounted 1n slots 23 in a ring 24, seatedin a circular groove 25 in the periphery of the ring 18, these rollersbearing against the interior surface of the flange 17. The section 14comprises a plate 26, provided on one side with a aterally-projectingboss 27 and power-shaft 28, the boss coming against the interior surfaceof the wall 3 of the casing and spacing the plate 26 therefrom and theshaft 28 passing through the bore 5 in the boss 4, and said plate isrovided on the other side with a boss 29, having a bore 30 to receivethe journal 9, on which said section revolves, and to insure a tightcontact between such parts a split ring 31 is seated in a circulargroove 32 in the periphery of said journal. The inside of the plate 26is also provided with a laterally-projecting circular flange 32, whichis located between the flange 16 and 17 of the plate 15 and contactingwith the exterior surface of the flange 17 at the point 33 and with theinterior surface of the flange 16 at the point 34 and by such contactconsequently revolves the plate 13 with it.

A bore 35 extends through the plate 26, its lower end registering withthe bore 8 in the journal 9 and its other end having two holes 36 and 37through the inside of the plate 26 communicating therewith, whereby thespent steam can be exhausted from the casing and piston. A bore 38extends through the plate 26 from apoint within the flange 32, and itsother end has two holes 39 and 40 through by screws 64, projectingl tionof said plates being such that two edges of each plate will projectbeyond two edges of the other plate, whereby the size of the abutmentwill be automatically regulated to take up any wear and to allow it toalways assume a radial position with relation to the axis of the section26.

To provide for admitting steam into the casing, an inlet-pipe projectsthrough the plate 6.

For the purpose of holding the flanges of the plate 15 tightly againstthe interior surface of the plate 26 a ring is located between the outerface of the plate 15 and the inner face of the plate 6 and seats in agroove 61 on springs 62, seated in holes 63, and said springs areadjusted to the required tension through threaded holes 65, leading intosai holes 63.

The 0 eration is as follows: It will be understoo from the constructionand arrangement of parts, as herein described, that ifv live steam beadmitted throu h the inlet-pipe it will distribute itself aroun all theparts of the piston, and, as the outside surface area of the plate 26 isless than the interior surface area of said plate and the ends of theflanges and boss, the boss 27 on the outside of the .plate 14 is forcedtightly against the interior surface of the wall 3, and thereby obviatesthe necessity of a packing-box for the shaft 5; that the steam will passthrough the bore 38 and into the open space between the sections 13 and1 1, and if the sections be in the position shown by the drawings itwill simultaneously fill the space between the flanges 16, 17, and 32,backing up between said flanges at the points 33 and 34, driving theabutment around, and with it the section 14, and by reason of thefrictional contact between the flanges of said sections they will beturned, and on account of the relation of said flanges as the sectionsrevolve the space between the abutment and the inside of the flange 32will be increased and the space between the abutment and the outside ofthe flange 32 will diminish, this condition continuing until theabutment passes the point 34, when the spent steam will begin to exhaustfrom the space outside the flange 32 throu h the holes 36, the bore 35,the bore 8, and t e bore in the pipe 10, and when the abutment passesthe point 33 spent steam will begin to exhaust from the space insidesteam.

I do not desire to be understood as limiting myself to the details ofconstruction and arrangement as herein described and illustrated, as itis manifest that variations and modifications may be made in thefeatures of construction and arrangement in the adaptation of the deviceto various conditions of use without departing from the spirit and scopeof my invention and improvements. I therefore reserve the right to allsuch variation and modification as properly fall within the scope of myinvention and the terms of the followin claims.

Having t us described my invention, I claim and desire to secure byLetters Patent 1. A rotary engine, comprising a fixed casing and achambered piston having eccentrically-mounted rotatable sections,substantially as described.

2. A rotary engine, comprising a fixed casing and a chambered pistontherein having eccentrically-mounted contacting rotatable sections, onesection being driven by the other section, substantially as described.

3. A rotary engine, comprising a fixed casing and a chambered pistontherein having rotatable sections provided with circular flanges, theflange of one section contacting with the flanges of the other section,substantially as described.

4. A rotary engine, comprising a fixed casing, a chambered pistontherein having rotatable sections provided with circular flanges and anabutment carried by one section and movable within the other section,"

substantially as described.

5. A rotary engine, comprising a fixed casing, a chambered pistontherein having rotatable sections provided with circular contactingflanges and an abutment carried by and slidable through the flange ofone section and movable around and between the flanges of the othersection, substantially as described.

6. A rotary engine, comprising a fixed casing, a chambered pistontherein having rotatable eccentrically-mounted sections provided withcircular contacting flanges and an abutment carried by and slidablethrough the flange of one section and movable around and between theflanges of the other section, substantially as described.

7. A rotary en ine, comprising a fixed casing, a chambere piston thereinhaving rotatable flanged contacting sections and means for adjusting oneof said sections to regulate the contact between the flanges of saidsections, substantially as described.

IIO

8. A rotary engine, comprising a fixed casing, a chambered pistontherein having rotatable sections provided with contacting flanges andan adjustable journal for one of said sections, substantially asdescribed.

9. A rotary engine comprising a fixed casing, a chambered piston thereinhaving a rotatable section provided with contacting flanges and anantifriction-journal for one of said sections, substantially asdescribed.

10. A rotary engine, comprising a fixed casing, a chambered pistontherein having rotatable sections provided with contacting flanges andan automatically adjustable abutment carried by the flange of one ofsaid sections, substantially as described.

1 1. A rotary engine, comprising a fixed casing, a chambered pistontherein having eccentrically-mounted rotatable sections, one sectionhaving two concentric flanges and the other section having one flangecontacting at two points with the flanges of the other-section and anabutment carried by the flange of one section and movable around betweenthe flanges of the other section, substantially as described.

12. A rotary engine, comprising a fixed casing, a chambered pistontherein having eccentrically-mounted rotatable sections, one sectionhaving two concentric flanges and the other section having one flangecontacting at two points with the flanges of the other section and anabutment slidably carried by the flange of one section and movablearound between the flanges of the other section, substantially asdescribed.

13. A rotary engine, comprising a fixed casing, a chambered pistontherein having eccentrically-mounted rotatable sections, one sectionhaving two concentric flanges and the other section having one flangecontacting at two points with the flanges of the other section and anautomatically-adjustable abutment slidably carried by the flange of onesection and movable around between the flanges of the other section,substantially as described.

14. A rotary engine, comprising a fixed casing a chambered pistontherein having rotatable sections, one section provided with twocircular flanges and the other section with one circular flange, theflange of one section located between and contacting with the flanges ofthe other section at two points and an abutment carried by the flange ofone section and movable around between the flanges of the other section,said abutment comprising contacting recessed plates having a springlocated in the recess of said plates, substantially as described.

In testimony whereof I have signed my name in the presence of thesubscribing witnesses.

GEORGE PERRY CLARK.

Witnesses:

FANoHER NrcoLL, B. L. MOLITOR.

